Time is just a concept made by man, so would it be possible to travel in back in time? The answer is no. But there are rifts, these rifts being... Black and White holes. Though traveling back in time is considered impossible, Traveling forward might just be possible. Black holes are singularities with gravity that can pull things in the hole at extreme speeds. White holes are considered the exit point of a black hole. If humans were to find a way to construct a ship strong enough to withstand the gravitational force and the debris of space, it could work. This is what I think. Please give me your opinions on both time travel and my theory. P.S. Please don't shut me down too hard as i'm only 15. I worked really hard to think of this possibility so any help will work.
The theory is that you could enter a black hole and be sent forward in time. This may be explained in the future but this is all i have so far.